Slidemaster Placard Holder for Trucks meets Labelmaster's exacting standards for top quality construction. This slide-in placard holder features Easy-Off Ramp, an innovative device that glides placards over the retaining clip, so they slide in or out without a hitch. Built with rugged riveted assembly, drain hole and stainless steel clip, Slidemaster holders accommodate metal placards and non-adhesive placards in polycoated tagboard and 20-mil rigid vinyl. Slidemaster Slide-In Placard Holder with two clipped corners for use on 15 roll-up rear door panels comes with a shiny brite mill metal finish on .032 aluminum. Our most economical DOT Placard System is priced per each.